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SYSTEM WILL NOT BUILD OR HOLD AIR PRESSURE DURING BLOW-OUT PROCEDURE - Continued
TANK FILL & RE-CIRCULATING VALVE DOES NOT OPERATE PROPERLY

Maintenance Manual For Tactical Fire Fighting Truck (Tfft) Model M1142 - 1 Page Navigation
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DRAFT
TM 5-4210-249-13&P
0117
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 16.
Install passenger side tank-to-pump check valve boot (WP 0296). Remove driver side
tank-to-pump check valve boot (WP 0295). While an assistant puts 50 PSI (345 kPa)
air pressure to system (WP 0044). Check if air pressure can be heard escaping past
driver side tank-to-pump valve.
a.
If air pressure can be heard escaping past driver side tank-to-pump
valve, replace driver side tank-to-pump valve (WP 0493).
b.
If air pressure cannot be heard escaping past driver side tank-to-pump
valve, repair (WP 0387) or replace tank fill & re-circulating
valve (WP 0388).
END OF TASK
FOLLOW-ON MAINTENANCE
1.
Install shield if removed (WP 0493)
2.
Remove wheel chocks (TM 9-2320-347-10)
END OF TASK
END OF WORK PACKAGE
0117-9/(10 blank)


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